What is the cheapest airline that flies from Louisville Intl to Sydney Kingsford Smith?

United Airlines is the most popular carrier operating from Louisville Intl to Sydney Kingsford Smith

What airlines fly to Sydney?

United Airlines, American Airlines and Qantas Airways are the top three most popular airlines that fly to Sydney from Louisville according to our data. United Airlines is the first choice among our users, with 51% of people opting to fly with this airline when traveling to Sydney. Keep in mind that there are 5 different airlines that fly to Sydney on a routine basis, so you have a few additional options to choose from.

When did momondo last update prices for flights from Louisville Intl Airport to Sydney Kingsford Smith Airport?

Prices for flights from Louisville Intl Airport to Sydney Kingsford Smith Airport are refreshed on a daily basis.

How many operators does momondo search for flights from Louisville Intl Airport to Sydney Kingsford Smith Airport?

There are 2 operators available for flights from Louisville Intl Airport to Sydney Kingsford Smith Airport as of June 2026.

How old do you have to be to fly from Louisville Intl Airport to Sydney Kingsford Smith Airport?

The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Louisville Intl Airport to Sydney Kingsford Smith Airport.

What documentation or ID do you need to fly to Sydney Kingsford Smith Airport?

The required travel and health documents for your Sydney Kingsford Smith Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Sydney Kingsford Smith Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

$674 Cheap Flights from Louisville to Sydney in 2026

Q: What is the typical price of a round-trip flight between Louisville and Sydney?

Prices are currently low for flights on this route. Typical prices usually range from $1,396 to $1,245. The lowest price recently found on this route was $1,309.

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Louisville to Sydney

Round-trip

One-way

Last minute

Cheap round-trip flights

Enter your travel dates to find the best prices.

4:26 pm - 5:40 pm

SDF

SYD

33h 14m

2 stops

2:05 pm - 5:35 pm

SYD

SDF

19h 30m

1 stop

$1,309Qantas Airways

Tue, Dec 1 - Sun, Feb 28

3:35 pm - 7:00 am

SDF

SYD

25h 25m

2 stops

9:30 am - 10:15 pm

SYD

SDF

26h 45m

2 stops

$1,391Air New Zealand

Thu, Aug 27 - Thu, Sep 3

7:15 am - 7:00 am

SDF

SYD

33h 45m

2 stops

10:20 am - 11:59 pm

SYD

SDF

27h 39m

2 stops

$1,392United Airlines

Sat, Jul 4 - Sat, Jul 11

3:25 pm - 7:00 am

SDF

SYD

49h 35m

2 stops

9:30 am - 7:07 pm

SYD

SDF

23h 37m

2 stops

$1,409United Airlines

Wed, Aug 26 - Sat, Sep 5

7:05 am - 7:00 am

SDF

SYD

31h 55m

1 stop

11:50 am - 9:30 pm

SYD

SDF

25h 40m

1 stop

$1,459United Airlines

Tue, Dec 1 - Sun, Feb 28

9:32 am - 7:00 am

SDF

SYD

29h 28m

1 stop

11:50 am - 9:30 pm

SYD

SDF

25h 40m

1 stop

$1,460United Airlines

Sun, Nov 15 - Wed, Dec 9

1:55 pm - 7:00 am

SDF

SYD

25h 05m

2 stops

2:00 pm - 9:57 pm

SYD

SDF

23h 57m

2 stops

$1,463Air New Zealand

Tue, Dec 1 - Sun, Feb 28

3:50 pm - 7:00 am

SDF

SYD

23h 10m

1 stop

11:20 am - 9:57 pm

SYD

SDF

26h 37m

2 stops

$1,464United Airlines

Sun, Nov 15 - Wed, Dec 9

9:32 am - 7:00 am

SDF

SYD

29h 28m

1 stop

11:50 am - 7:35 pm

SYD

SDF

23h 45m

1 stop

$1,485United Airlines

Fri, Nov 13 - Wed, Dec 9

3:25 pm - 6:55 am

SDF

SYD

25h 30m

2 stops

10:20 am - 7:55 pm

SYD

SDF

23h 35m

2 stops

$1,492Air New Zealand

Sun, Sep 6 - Fri, Sep 18

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Air New Zealand flights from Louisville to Sydney

Our best Air New Zealand deals on Louisville to Sydney flight tickets

Air New Zealand

Jun 10

SDF3:25 pmLouisville Intl

25h 30m

2 stops

SYD6:55 amSydney Kingsford Smith

Jun 17

SYD9:30 amSydney Kingsford Smith

23h 30m

2 stops

SDF7:00 pmLouisville Intl

$1,294

Air New Zealand

Jun 10

SDF3:25 pmLouisville Intl

25h 35m

2 stops

SYD7:00 amSydney Kingsford Smith

Jun 17

SYD10:20 amSydney Kingsford Smith

23h 41m

2 stops

SDF8:01 pmLouisville Intl

$1,295

Air New Zealand

Aug 27

SDF3:35 pmLouisville Intl

25h 25m

2 stops

SYD7:00 amSydney Kingsford Smith

Sep 3

SYD9:30 amSydney Kingsford Smith

26h 45m

2 stops

SDF10:15 pmLouisville Intl

$1,391

Air Canada flights from Louisville to Sydney

Our best Air Canada deals on Louisville to Sydney flight tickets

Air Canada

Nov 15

SDF6:30 amLouisville Intl

59h 05m

3 stops

SYD9:35 amSydney Kingsford Smith

Dec 9

SYD11:20 amSydney Kingsford Smith

26h 49m

2 stops

SDF10:09 pmLouisville Intl

$2,796

Air Canada

Nov 14

SDF1:55 pmLouisville Intl

51h 40m

3 stops

SYD9:35 amSydney Kingsford Smith

Dec 9

SYD11:20 amSydney Kingsford Smith

26h 49m

2 stops

SDF10:09 pmLouisville Intl

$2,829

Air Canada

Nov 13

SDF9:00 amLouisville Intl

56h 35m

3 stops

SYD9:35 amSydney Kingsford Smith

Dec 9

SYD11:20 amSydney Kingsford Smith

26h 49m

2 stops

SDF10:09 pmLouisville Intl

$2,844

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

LouisvilleSydney

SDF - SYD

SDFSYD

Louisville Intl

Tue 12/1

4:26 pm-5:40 pm

2 stops33h 14m

Sydney Kingsford Smith

Sun 2/28

2:05 pm-5:35 pm

1 stop19h 30m

$1,309

LouisvilleSydney

SDF - SYD

SDFSYD

Louisville Intl

Thu 8/27

3:35 pm-7:00 am

2 stops25h 25m

Sydney Kingsford Smith

Thu 9/3

9:30 am-10:15 pm

2 stops26h 45m

$1,391

LouisvilleSydney

SDF - SYD

SDFSYD

Louisville Intl

Sat 7/4

7:15 am-7:00 am

2 stops33h 45m

Sydney Kingsford Smith

Sat 7/11

10:20 am-11:59 pm

2 stops27h 39m

$1,392

LouisvilleSydney

SDF - SYD

SDFSYD

Louisville Intl

Wed 8/26

3:25 pm-7:00 am

2 stops49h 35m

Sydney Kingsford Smith

Sat 9/5

9:30 am-7:07 pm

2 stops23h 37m

$1,409

LouisvilleSydney

SDF - SYD

SDFSYD

Louisville Intl

Tue 12/1

7:05 am-7:00 am

1 stop31h 55m

Sydney Kingsford Smith

Sun 2/28

11:50 am-9:30 pm

1 stop25h 40m

$1,459

LouisvilleSydney

SDF - SYD

SDFSYD

Louisville Intl

Sun 11/15

9:32 am-7:00 am

1 stop29h 28m

Sydney Kingsford Smith

Wed 12/9

11:50 am-9:30 pm

1 stop25h 40m

$1,460

Quickest round-trip

LouisvilleSydney

SDF - SYD

SDFSYD

Louisville Intl

Tue 12/1

1:55 pm-7:00 am

2 stops25h 05m

Sydney Kingsford Smith

Sun 2/28

2:00 pm-9:57 pm

2 stops23h 57m

$1,463

LouisvilleSydney

SDF - SYD

SDFSYD

Louisville Intl

Sun 11/15

3:50 pm-7:00 am

1 stop23h 10m

Sydney Kingsford Smith

Wed 12/9

11:20 am-9:57 pm

2 stops26h 37m

$1,464

LouisvilleSydney

SDF - SYD

SDFSYD

Louisville Intl

Fri 11/13

9:32 am-7:00 am

1 stop29h 28m

Sydney Kingsford Smith

Wed 12/9

11:50 am-7:35 pm

1 stop23h 45m

$1,485

LouisvilleSydney

SDF - SYD

SDFSYD

Louisville Intl

Sun 9/6

3:25 pm-6:55 am

2 stops25h 30m

Sydney Kingsford Smith

Fri 9/18

10:20 am-7:55 pm

2 stops23h 35m

$1,492

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 18 resultsSorted by cheapest first

How to get the cheapest flight ticket from Louisville to Sydney

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

Prices

Airlines

What is the typical price of a round-trip flight between Louisville and Sydney?

What is the cheapest month to fly to Sydney?

In general, March is the cheapest month to fly from Louisville to Sydney. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $0. If you are unable to visit Sydney during the month of March, then departing from Louisville during the month August is also very affordable. Most momondo users find prices during this month for around $1,167.

Can stopping save me money on Louisville to Sydney flights?

You could potentially save up to 21% on your flight if you consider stops on a Louisville to Sydney flight.

When to book flights from Louisville to Sydney

Are you open to changing your travel dates? Check out the ideal times to fly from Louisville to Sydney according to our flight data. Find out which month and days have the cheapest flights.

Estimated round-trip price

Cheap Louisville to Sydney (SDF to SYD) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Louisville to Sydney

Fastest flight time	23h 10m
Direct flights	None

The fastest flight from Louisville to Sydney takes 23h 10m

There are no direct flights from Louisville to Sydney. There are no popular flight routes from Louisville to Sydney.

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Frequently asked questions about flying from Louisville to Sydney

How far is Louisville Intl to Sydney Kingsford Smith by plane?
A flight from Louisville Intl to Sydney Kingsford Smith will travel around 9284.6 mi. A reasonable flight in good conditions will take 23h 10m.
When did momondo last update prices for flights from Louisville Intl Airport to Sydney Kingsford Smith Airport?
Prices for flights from Louisville Intl Airport to Sydney Kingsford Smith Airport are refreshed on a daily basis.
How many operators does momondo search for flights from Louisville Intl Airport to Sydney Kingsford Smith Airport?
There are 2 operators available for flights from Louisville Intl Airport to Sydney Kingsford Smith Airport as of June 2026.
How old do you have to be to fly from Louisville Intl Airport to Sydney Kingsford Smith Airport?
The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Louisville Intl Airport to Sydney Kingsford Smith Airport.
What documentation or ID do you need to fly to Sydney Kingsford Smith Airport?
The required travel and health documents for your Sydney Kingsford Smith Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Sydney Kingsford Smith Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.
What is the most popular airline from Louisville to Sydney?
Based on momondo bookings for this flight route, the most popular airline on flight routes from Louisville to Sydney is United Airlines (74% of total bookings). The next most popular airline is Delta (26%).

Best airlines flying from Louisville to Sydney

Compare and see reviews for airlines that fly from Louisville to Sydney with momondo

Airline	Rating	Free Cancellation	Price
Delta	PriceFrom $662	Free Cancellation	Rating 7.9 8,394 reviews		Search Delta flights
United Airlines	PriceFrom $973	Free Cancellation	Rating 7.4 9,796 reviews		Search United Airlines flights

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Katoomba

Penrith

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Leura

Randwick

Lithgow

Manly

Coogee

Cronulla

Terrigal

Charlestown

Swansea

Why use momondo?

Why should I use momondo to find a flight deal from Louisville to Sydney?

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from Louisville to Sydney for you.

Can I find flights from Louisville to Sydney with flexible booking policies on momondo?

Yes. momondo allows you to filter the results for Louisville to Sydney flights to just show those with flexible booking policies.

How can momondo help me find flights from Louisville to Sydney?

momondo provides multiple filters to help you find the best flight to Sydney from Louisville. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

I’m not ready to book a flight from Louisville to Sydney right now. Can momondo alert me if prices change?

If you are not ready to book a flight from Louisville to Sydney now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to Sydney and let you know when they change.

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Cheap flights from Louisville to Sydney from $674

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Louisville to Sydney departing on 11/15. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

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Air New Zealand flights from Louisville to Sydney

Our best Air New Zealand deals on Louisville to Sydney flight tickets

Air Canada flights from Louisville to Sydney

Our best Air Canada deals on Louisville to Sydney flight tickets

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How to get the cheapest flight ticket from Louisville to Sydney

What is the typical price of a round-trip flight between Louisville and Sydney?

What is the cheapest month to fly to Sydney?

Can stopping save me money on Louisville to Sydney flights?

What is the cheapest airline that flies from Louisville Intl to Sydney Kingsford Smith?

What airlines fly to Sydney?

When to book flights from Louisville to Sydney

Cheap Louisville to Sydney (SDF to SYD) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Louisville to Sydney

Fastest flight time

Direct flights

Frequently asked questions about flying from Louisville to Sydney

Best airlines flying from Louisville to Sydney

Compare and see reviews for airlines that fly from Louisville to Sydney with momondo

Traveling to a place near Sydney?

Why use momondo?

An easier way to manage your Sydney trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

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Airports servicing New South Wales

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List of cabin classes available on flights landing in Sydney. Availability may vary depending on flight origin and airline.

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